How many quarts of oil do it take to change flhtk Harley 2011?

Changing the oil in a 2011 Harley-Davidson FLHTK typically requires about 4 quarts of oil when using a standard oil filter. If you are replacing the oil filter as part of the change, you might need slightly more oil, so it's a good idea to have around 5 quarts on hand. Always refer to the owner's manual for the most accurate specifications.